Depending on it's intended use...
Upgrades would include a Tactical Light...
I use this setup on my 590a1...Mount & Flashlight.
https://www.elzetta.com/product/zsm/
{ Made in the USA }
The Marine Coat is durable...a light coating of CLP will help protect the internals...
Do it have Ghost Ring Sights...?
There are also Red Dots / Center Mass aiming devices available.
Not sure about after market Ghost Rings...
Had my 590a1 since 2014...and I use her hard...not a hiccup.
Built for Military Use...still in service
Runs like a Raped Ape...
OP. The 590A1 is a great shot gun out of the box. Bling is application dependent or just personal preference. View attachment 15385
On my 590A1 Blackwater I have XS GRS from the factory a Promag safety and a good sling. There is a rail on the hand guard to take a flashlight but it's not a permanent addition.
Good Luck and post some pics!!
WingDings,Thanks, Shooter.
Had that same Elzetta on my 930 SPX a few years back. Solid mount, no doubt.
No ghost ring sights (front bead only), which will take some getting used to. Are there any aftermarket g.r. sights for the 590a1 you'd recommend?
How about followers? Springs? The factory stuff on the 590a1 last?
WingDings,
Spitfire Armory makes the MX Tactical Front and Rear ghost ring sight set. You can find them at Amazon. It looks like a functional setup, but they are quite fond of them at about $200 for the set.